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Fuse/Relay
Location
Fuse Amp
Rating
Passenger Compartment Fuse
Panel Description
304 — Not used
305 Full ISO relay Upfitter control
306 Full ISO relay Delayed accessory
307 Full ISO relay Starter
601 30A circuit
breaker
Delayed accessory, Power
windows, Moonroof
602 — Not used
* Mini fuse ** Cartridge fuse
Power distribution box
The power distribution box is located in the engine compartment. The
power distribution box contains high-current fuses that protect your
vehicle’s main electrical systems from overloads.
Always disconnect the battery before servicing high current
fuses.
To reduce risk of electrical shock, always replace the cover to
the Power Distribution Box before reconnecting the battery or
refilling fluid reservoirs.
If the battery has been disconnected and reconnected, refer to the
Battery section of the Maintenance and Specifications chapter.
2006 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
Roadside Emergencies
209